Granted Patent
Utility
US 5,342,801 · App. 08/028,026
Controllable isotropic plasma etching technique for the suppression of stringers in memory cells
Inventors:
Jeffrey Robert Perry, S. M. Reza Sadjadi, Kristen Luttinger
Patented Case
View Patent ↗
Granted: Aug 30, 1994
Filed: Mar 8, 1993
Inventors
Jeffrey Robert Perry
S. M. Reza Sadjadi
Kristen Luttinger
Assignee (at issue)
NATIONAL SEMICONDUCTOR CORPORATION
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.